Metadata (langchain4j-core 0.21.0 API)

```
public class Metadata
extends Object
```
Represents metadata of a Document or a TextSegment. The metadata is stored in a key-value map, where both keys and values are strings. For a Document, the metadata could include information such as the source, creation date, owner, or any other relevant details. For a TextSegment, in addition to metadata copied from a document, it can also include segment-specific information, such as the page number, the position of the segment within the document, chapter, etc.

Constructors
Constructor and Description
`Metadata()`
`Metadata(Map<String,String> metadata)`

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Metadata`	`add(String key, Object value)`
`Map<String,String>`	`asMap()`
`Metadata`	`copy()`
`boolean`	`equals(Object o)`
`static Metadata`	`from(String key, Object value)`
`String`	`get(String key)`
`int`	`hashCode()`
`void`	`mergeFrom(Metadata other)`
`static Metadata`	`metadata(String key, Object value)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

public Metadata(Map<String,String> metadata)

public Metadata add(String key,
                    Object value)

public void mergeFrom(Metadata other)

public static Metadata from(String key,
                            Object value)

public static Metadata metadata(String key,
                                Object value)

Class Metadata